<template>
  <div class="dashboard-container">
    <div class="app-container">
      <page-tools :show-before="true">
        <span slot="before">共{{ page.total }}条记录</span>
        <template slot="after">
          <el-button
            size="small"
            type="warning"
            @click="$router.push('/import')"
          >导入</el-button>
          <el-button
            size="small"
            type="danger"
            @click="exportData"
          >导出</el-button>
          <el-button
            icon="plus"
            size="small"
            type="primary"
            @click="showDialog = true"
          >新增员工</el-button>
        </template>
      </page-tools>
      <el-card v-loading="loading">
        <el-table border :data="list">
          <el-table-column label="序号" sortable="" type="index" />
          <el-table-column label="姓名" sortable="" prop="username" />
          <el-table-column label="头像" align="center">
            <template v-slot="{ row }">
              <img
                slot="reference"
                v-imagerror="require('@/assets/common/bigUserHeader.png')"
                :src="row.staffPhoto"
                style="border-radius:50%;width:100px;height:100px;padding:10px"
                alt=""
                @click="showQrCode(row.staffPhoto)"
              />
            </template>
          </el-table-column>
          <el-table-column label="工号" sortable="" prop="workNumber" />
          <el-table-column
            label="聘用形式"
            sortable=""
            prop="formOfEmployment"
            :formatter="formatEmployment"
          />
          <el-table-column label="部门" sortable="" prop="departmentName" />
          <el-table-column label="入职时间" sortable="" prop="timeOfEntry">
            <template slot-scope="{ row }">
              {{ row.timeOfEntry | formatDate }}
            </template>
          </el-table-column>
          <el-table-column label="账户状态" sortable="" prop="enableState">
            <template slot-scope="{ row }">
              <el-switch :value="row.enableState === 1" />
            </template>
          </el-table-column>
          <el-table-column label="操作" sortable="" fixed="right" width="280">
            <template slot-scope="{ row }">
              <el-button
                type="text"
                size="small"
                @click="$router.push(`/employees/detail/${row.id}`)"
              >查看</el-button>
              <el-button type="text" size="small">转正</el-button>
              <el-button type="text" size="small">调岗</el-button>
              <el-button type="text" size="small">离职</el-button>
              <el-button type="text" size="small" @click="editRole(row.id)">角色</el-button>
              <el-button
                type="text"
                size="small"
                @click="delEmployee(row.id)"
              >删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        <!-- 分页组件 -->
        <el-row type="flex" justify="center" align="middle" style="height:60px">
          <el-pagination
            layout="prev,pager,next"
            :page-size="page.size"
            :current-page="page.page"
            :total="page.total"
            @current-change="changePage"
          />
        </el-row>
      </el-card>
      <add-employee :show-dialog.sync="showDialog" />
    </div>
    <!-- 二维码弹层 -->
    <el-dialog
      title="二维码"
      :visible.sync="showCodeDialog"
      @opened="showQrCode"
      @close="imgUrl = ''"
    >
      <el-row type="flex" justify="center">
        <canvas ref="myCanvas"></canvas>
      </el-row>
    </el-dialog>
    <!-- 放置分配组件 -->
    <assign-role ref="assignRole" :show-role-dialog.sync="showRoleDialog" :user-id="userId" />
  </div>
</template>

<script>
import { getEmployeeList, delEmployee } from '@/api/employees'
import EmployeeEnum from '@/api/constant/employees'
import addEmployee from './components/add-employee.vue'
import { formatDate } from '@/filters'
import QrCode from 'qrcode'
import AssignRole from './components/assign-role.vue'
export default {
  components: {
    addEmployee, AssignRole
  },
  data() {
    return {
      loading: false,
      list: [],
      page: {
        page: 1,
        size: 10,
        total: 0
      },
      showDialog: false, // 控制新增员工组件的显示与隐藏
      showCodeDialog: false, // 显示二维码弹层
      showRoleDialog: false, // 显示分配角色弹层
      userId: null // 定义一个分配权限的userId
    }
  },
  created() {
    this.getEmployeeList()
  },
  methods: {
    // 获取员工列表信息
    async getEmployeeList() {
      this.loading = true
      const { total, rows } = await getEmployeeList(this.page)
      // console.log(rows)
      this.list = rows
      this.page.total = total
      this.loading = false
    },
    // 分页组件change事件
    changePage(newPage) {
      this.page.page = newPage
      this.getEmployeeList()
    },
    // 员工格式化
    formatEmployment(row, column, cellValue, index) {
      // console.log(cellValue)
      const obj = EmployeeEnum.hireType.find(item => item.id === cellValue)
      return obj ? obj.value : '未知'
    },
    // 根据ID删除员工信息
    async delEmployee(id) {
      try {
        await this.$confirm('您确定删除该员工嘛？')
        // 如果删除的是当页最后一条，就跳转到前一页
        // if (this.page.total % this.page.size === 1 && this.page.page !== 1) {
        //   this.page.page -= 1
        // }
        const currentPage = Math.ceil(
          (Number(this.page.total) - 1) / this.page.size
        )
        this.page.page =
          this.page.page > currentPage && currentPage > 0
            ? currentPage
            : this.page.page
        await delEmployee(id)
        // 重新加载员工信息列表
        this.getEmployeeList()
        // 弹出成功提示
        this.$message.success('删除员工成功')
      } catch (error) {
        console.log(error)
      }
    },
    exportData() {
      // 表头对应关系
      const headers = {
        姓名: 'username',
        手机号: 'mobile',
        入职日期: 'timeOfEntry',
        聘用形式: 'formOfEmployment',
        转正日期: 'correctionTime',
        工号: 'workNumber',
        部门: 'departmentName'
      }
      // 懒加载
      import('@/vendor/Export2Excel').then(async excel => {
        const { rows } = await getEmployeeList({
          page: 1,
          size: this.page.total
        })
        const data = this.formatJson(headers, rows)

        excel.export_json_to_excel({
          header: Object.keys(headers),
          data,
          filename: '员工信息表'
        })
      })
    },
    formatJson(headers, rows) {
      // 先遍历获取到的数组
      // [{},{},{}]=>[[],[],[]]
      return rows.map(item => {
        return Object.values(headers).map(value => {
          if (value === 'timeOfEntry' || value === 'correctionTime') {
            return formatDate(item[value])
          } else if (value === 'formOfEmployment') {
            const obj = EmployeeEnum.hireType.find(
              obj => obj.id === item[value]
            )
            return obj ? obj.value : '未知'
          }
          return item[value]
        })
      })
    },
    // 弹出头像二维码
    showQrCode(url) {
      // url存在的情况下才弹出层
      if (url) {
        this.showCodeDialog = true
        this.$nextTick(() => {
          QrCode.toCanvas(this.$refs.myCanvas, url)
        })
      } else {
        this.$message.warning('该用户还未上传头像')
      }
    },
    // 点击角色分配权限
    async editRole(id) {
      // 将按钮对应行的id传递给子组件
      this.userId = id // 通过props传值是异步的
      await this.$refs.assignRole.getUserDetailById(id) // 所以在父组件点击角色时直接调用子组件方法
      // 弹出层
      this.showRoleDialog = true
    }
  }
}
</script>

<style></style>
